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(Rac)-Indoximod (1-Methyl-DL-tryptophan) is an indoleamine 2,3-dioxygenase (IDO) inhibitor. Co-treatment with IFN-γ and (Rac)-Indoximod markedly reduces the activity of human cardiac myofibroblasts (hCMs) expressing α-SMA and induces apoptosis through up-regulating the IRF-1, Fas, and FasL genes.
IDO1-IN-2 (compound 16) is a potent and selective IDO1 inhibitor with IC50s of 81 nM, 59 nM (mouse) and 28 nM (rat), respectively. IDO1-IN-2 has anti-cancer activity.
(S)-IDO1-IN-5 (Example 1B) is an active S-isomer of IDO1-IN-5. (S)-IDO1-IN-5 binds to IDOL with an IC50 value less than 1.5 µΜ. IDO1-IN-5 is a potent, selective and brain penetrated inhibitor of Indoleamine 2,3-Dioxygenase 1 (IDO1) activity, binds to apo-IDO1 lacking heme rather than mature heme-bound IDO1.
(Rac)-IDO1-IN-5 (Example 1) is a racemate of IDO1-IN-5. IDO1-IN-5 is a potent, selective and brain penetrated inhibitor of Indoleamine 2,3-Dioxygenase 1 (IDO1) activity, binds to apo-IDO1 lacking heme rather than mature heme-bound IDO1.